Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Hillsborough
Air quality index (AQI) and PM2.5 air pollution in Hillsborough
30 people follow this city
Hillsborough Air Quality Map
Real-time Hillsborough air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Hillsborough today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Hillsborough?
| Weather | Broken clouds |
| Temperature | 50°F |
| Humidity | 90% |
| Wind | 1 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Colville, Washington | 142 |
| 2 | Mecca, California | 84 |
| 3 | Casa Grande, Arizona | 76 |
| 4 | Corpus Christi, Texas | 70 |
| 5 | Yucaipa, California | 64 |
| 6 | Marana, Arizona | 63 |
| 7 | Lubbock, Texas | 61 |
| 8 | Maricopa, Arizona | 61 |
| 9 | San Fernando, California | 61 |
| 10 | Anchorage, Alaska | 59 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
39*
live AQI index
Good
Overview
What is the current air quality in Hillsborough?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 39* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.6*µg/m³ | |
!
PM2.5
x1.9
PM2.5 concentration in Hillsborough is currently 1.9 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Hillsborough?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Hillsborough air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 39 AQI US |  100% | 53.6° 44.6° |  2.2 mp/h |
| Thursday, May 2 | Good 45 AQI US | 50% | 69.8° 46.4° | 11.2 mp/h |
| Friday, May 3 | Good 38 AQI US | | 59° 44.6° | 4.5 mp/h |
| Saturday, May 4 | Good 23 AQI US | | 57.2° 42.8° | 8.9 mp/h |
| Sunday, May 5 | Good 10 AQI US | 100% | 44.6° 42.8° | 2.2 mp/h |
| Monday, May 6 | Good 22 AQI US | | 68° 44.6° | 6.7 mp/h |
| Tuesday, May 7 | Good 30 AQI US |  | 75.2° 46.4° | 4.5 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Hillsborough?
No locations are available.
AQI US, Metric